Results 31 to 40 of about 6,679,972 (285)

Research on Water-Entry Hydrodynamics for a Cross-Wing Underwater Vehicle

Journal of Marine Science and Engineering
The optimization of the water-entry strategy for cross-wing underwater vehicles has become a research hotspot in the field of engineering, and its water-entry process is quite different from that of wedges and cylinders. In order to address this problem,
Yunsai Chen, Haozhen Pang, Dong Zhang, Zhang Shi, Qinghua Jiang   +4 more
doaj   +1 more source

Water Entry of A Wedge Into Waves in Three Degrees Offreedom

Polish Maritime Research, 2019
The hydrodynamic problem of a two-dimensional wedge entering into a nonlinear wave in three degrees of freedom is investigated based on the incompressible velocity potential theory.
Sun Shi Yan, Chen Hai Long, Xu Gang
doaj   +1 more source

Sustaining Robust Cavities with Slippery Liquid–Liquid Interfaces

Advanced Science, 2022
The formation of a stable gas cavity on the surfaces of solid bodies is essential for many practical applications, such as drag reduction and energy savings, owing to the transformation of the originally sticky solid–liquid interface into a free‐slip ...
Suwan Zhu, Tao Wu, Yucheng Bian, Chao Chen, Yiyuan Zhang, Jiawen Li, Dong Wu, Yanlei Hu, Jiaru Chu, Erqiang Li, Zuankai Wang   +10 more
doaj   +1 more source

Establishing an Apheresis Medicine Program in a Resource‐Constrained Setting: A 5‐Year Experience From Lagos, Nigeria

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Establishing a comprehensive apheresis medicine program in a resource‐constrained setting presents significant structural, financial, and logistical challenges. Despite the growing clinical importance of apheresis services globally, published experience from sub‐Saharan Africa remains sparse.
Folasade Adelekan‐Popoola, Shakirat Gold‐Olufadi, Olufunto Olufela Kalejaiye, Abdullateef Ogala, Rasheed A. Balogun   +4 more
wiley   +1 more source

Numerical Analysis of the Water Entry Process of the Cabin Structure of the Trans-Domain Morphing Aircraft Considering Structural Deformation

Aerospace
During the water entry process of a trans-domain morphing aircraft, significant impact forces are generated when the aircraft hits the water surface, which will potentially cause the deformation of the cabin structure and might damage the structure or ...
Yu Zhang, Ziyi He, Chen Wang, Qi Hu, Songwen Dong, Xing Shen, Jun Zhang, Taoxi Wang   +7 more
doaj   +1 more source

Parametric Study on the Free-Fall Water Entry of a Sphere by Using the RANS Method

Journal of Marine Science and Engineering, 2019
Motivated by the application of water-entry problems in the air-drop deployment of a spherical oceanographic measuring device, the free-fall water entry of a sphere was numerically investigated by using the transient Reynolds-averaged Navier−Stokes
Pengyao Yu, Cong Shen, Chunbo Zhen, Haoyun Tang, Tianlin Wang   +4 more
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Numerical Simulation of Water Entry Process of Trans-Medium Vehicles

水下无人系统学报
The trans-medium water entry process of vehicles is often accompanied by multiphase flow, cavitation, phase change, and turbulence instability, which not only heighten the complexity of the flow field, but also render the forces highly unsteady and ...
Pingan LIU, Hongtao GAO, Yanxi YANG, Xi HUANG, Song GAO, Zhentao JI   +5 more
doaj   +1 more source

Experimental Research on the Influences of Head Shape and Surface Properties on the Water Entry Cavity

Journal of Marine Science and Engineering, 2022
Addressing the problem of the influence of surface properties on the cavity in the process of a moving body entering water, especially the problems of water entry speed and the cavitation evolution of the round-head, air-delivered projectile that has ...
Yao Shi, Peng Xiao, Hairui Zhao, Guang Pan   +3 more
doaj   +1 more source